<!doctype html>
<html lang="zh-CN">
  <head>
    <!-- 必须的 meta 标签 -->
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
    <!-- Bootstrap 的 CSS 文件 -->
    <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap@4.6.1/dist/css/bootstrap.min.css" >
    <title>Hello, world!</title>
  </head>
  <body>
    <!-- JavaScript 文件是可选的。从以下两种建议中选择一个即可！ -->
    <!-- 选项 1：jQuery 和 Bootstrap 集成包（集成了 Popper） -->
    <script src="https://cdn.jsdelivr.net/npm/jquery@3.5.1/dist/jquery.slim.min.js" ></script>
    <script src="https://cdn.jsdelivr.net/npm/bootstrap@4.6.1/dist/js/bootstrap.bundle.min.js"></script>
    <!-- 选项 2：Popper 和 Bootstrap 的 JS 插件各自独立
    
    <script src="https://cdn.jsdelivr.net/npm/jquery@3.5.1/dist/jquery.slim.min.js" ></script>
    <script src="https://cdn.jsdelivr.net/npm/popper.js@1.16.1/dist/umd/popper.min.js"></script>
    <script src="https://cdn.jsdelivr.net/npm/bootstrap@4.6.1/dist/js/bootstrap.min.js" ></script> -->
   
	<h3>
		<a href="https://v4.bootcss.com/docs/components/navs/" target="_blank">nav-tabs文档</a>
	</h3>
	<ul class="nav nav-tabs">
	  <li class="nav-item">
	    <a class="nav-link active" href="#">Active</a>
	  </li>
	  <li class="nav-item">
	    <a class="nav-link" href="#">Link</a>
	  </li>
	  <li class="nav-item">
	    <a class="nav-link" href="#">Link</a>
	  </li>
	  <li class="nav-item">
	    <a class="nav-link disabled">Disabled</a>
	  </li>
	</ul>
  </body>
</html>